公开(公告)号：US08121570B2

公开(公告)日：2012-02-21

申请号：US12418448

申请日：2009-04-03

申请人： Brima Ibrahim ,  Bojko Marholev ,  Lijun Zhang

发明人： Brima Ibrahim ,  Bojko Marholev ,  Lijun Zhang

IPC分类号： H04Q7/20

CPC分类号： H04H20/61 ,  H03J1/0008 ,  H04H20/71 ,  Y02D70/14

摘要： A system for processing signals is disclosed and may include a single chip having an integrated Bluetooth radio and an integrated FM radio. The single chip may include at least one processor that enables selecting from a range of FM channels, a particular frequency for one of the FM channels based on an intermediate frequency (IF). The particular frequency may be selected so that it is an integer multiple of a channel spacing between neighboring allocated FM channels within the range of FM channels, and may be offset by at most one-half the channel spacing. The at least one processor may enable determining a frequency error of the selected particular frequency for the one of the FM channels. The at least one processor may also enable determining, whether the particular frequency includes an on-frequency channel based on the determined frequency error.

摘要翻译： 公开了用于处理信号的系统，并且可以包括具有集成的蓝牙无线电和集成FM无线电的单个芯片。 单芯片可以包括至少一个处理器，其能够从FM频道的范围中选择基于中频（IF）的FM频道之一的特定频率。 可以选择特定频率，使得它是在FM信道范围内的相邻分配的FM频道之间的信道间隔的整数倍，并且可以偏移最多一半的信道间隔。 所述至少一个处理器可以使得能够确定所述FM频道之一的所选择的特定频率的频率误差。 所述至少一个处理器还可以使得能够基于所确定的频率误差来确定特定频率是否包括频率信道。

公开(公告)号：US07515935B2

公开(公告)日：2009-04-07

申请号：US11287120

申请日：2005-11-22

申请人： Brima Ibrahim ,  Bojko Marholev ,  Lijun Zhang

发明人： Brima Ibrahim ,  Bojko Marholev ,  Lijun Zhang

IPC分类号： H04Q7/32

CPC分类号： H04H20/61 ,  H03J1/0008 ,  H04H20/71 ,  Y02D70/14

摘要： A method and system for flexible FM tuning are provided and may include tuning to a particular frequency within a range of FM channels based on an IF frequency that includes an integer multiple of the channel spacing between neighboring allocated FM channels within the range of FM channels, offset by at most one-half the channel spacing. The method may further include determining whether the particular frequency comprises an on frequency channel, utilizing a frequency error that is based on the IF frequency. A local oscillator frequency may be selected for the tuning based on the frequency offset. An intermediate frequency (IF) channel may be generated utilizing the particular frequency and the selected local oscillator frequency. The generated IF channel may be between neighboring channels selected from the range of FM channels. The frequency error may be determined for the particular frequency within the range of FM channels.

摘要翻译： 提供了一种用于灵活FM调谐的方法和系统，并且可以包括基于包括FM频道范围内相邻分配的FM频道之间的信道间隔的整数倍的IF频率调谐到FM频道范围内的特定频率， 偏移最多一半的通道间距。 该方法还可以包括：利用基于IF频率的频率误差来确定特定频率是否包括频率信道。 可以选择基于频率偏移的本地振荡器频率进行调谐。 可以利用特定频率和所选择的本地振荡器频率来生成中频（IF）信道。 所生成的IF信道可以在从FM信道的范围中选择的相邻信道之间。 可以针对FM频道范围内的特定频率确定频率误差。

公开(公告)号：US20060280270A1

公开(公告)日：2006-12-14

申请号：US11434408

申请日：2006-05-15

申请人： Brima Ibrahim ,  Bojko Marholev

发明人： Brima Ibrahim ,  Bojko Marholev

IPC分类号： H04L7/00

CPC分类号： H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  Y02D70/14

摘要： Aspects of a method and system for FM communication are provided. An FM transceiver may generate FM radio frequency signals for transmission by modulating a single PLL within the FM transceiver via at least one modulation point with a frequency modulated multiplexed audio signal. The single PLL may also generate signals for downconversion of FM radio signals received by the transceiver. The single PLL may be modulated via a first modulation point in a feedback loop in the single PLL. In some instances, a reference frequency path within the single PLL may be selected to achieve the appropriate loop bandwidth for generating the FM radio signal for transmission. A second modulation point may be achieved by adding the modulated multiplexed audio signal to an input of a VCO within the single PLL. Moreover, the single PLL may be modulated via the first and second modulation points concurrently.

摘要翻译： 提供了FM通信的方法和系统的方面。 FM收发器可以通过经FM调频复用音频信号的至少一个调制点调制FM收发器中的单个PLL来产生FM射频信号进行发送。 单个PLL还可以产生用于由收发器接收的FM无线电信号的下变频的信号。 单个PLL可以通过单个PLL中的反馈环路中的第一调制点进行调制。 在一些情况下，可以选择单个PLL内的参考频率路径以实现用于生成用于传输的FM无线电信号的适当的环路带宽。 可以通过将调制的多路复用音频信号添加到单个PLL内的VCO的输入来实现第二调制点。 此外，单个PLL可以经由第一和第二调制点同时调制。

公开(公告)号：US6124764A

公开(公告)日：2000-09-26

申请号：US236008

申请日：1999-01-22

申请人： Jaap Haartsen ,  Bojko Marholev

发明人： Jaap Haartsen ,  Bojko Marholev

IPC分类号： G04G3/00 ,  H03J7/06 ,  H03L7/02 ,  H03L7/14 ,  H03L7/181 ,  H03K3/26

CPC分类号： H03L7/146 ,  H03J7/06 ,  H03L7/02

摘要： A method for calibrating a frequency device by monitoring its output cycles over a first plurality of monitoring windows is disclosed. An accumulation of these monitored cycles is used to determine a correction for the device over a second plurality of monitoring windows. A method for obtaining fractional correction values to be applied for controlling the frequency device is also disclosed.

摘要翻译： 公开了一种通过在第一多个监控窗口监视其输出周期来校准频率设备的方法。 这些监视周期的累积用于确定在第二多个监视窗口上的设备的校正。 还公开了一种获得用于控制频率设备的分数校正值的方法。

公开(公告)号：US08923780B2

公开(公告)日：2014-12-30

申请号：US11622551

申请日：2007-01-12

申请人： Adedayo Ojo ,  Bojko Marholev ,  Shahla Khorram

发明人： Adedayo Ojo ,  Bojko Marholev ,  Shahla Khorram

IPC分类号： H04B1/44 ,  H04B1/40 ,  H04W88/06

CPC分类号： H04B1/406 ,  H04W88/06 ,  Y02D70/122 ,  Y02D70/124

摘要： Aspects of a method and system for sharing low noise amplifier (LNA) circuitry in a single chip Bluetooth and wireless local area network (WLAN) system are disclosed. Aspects of the system may comprise a chip with integrated WLAN and Bluetooth radios. RF signals may be received via a single antenna coupled to a shared LNA integrated in chip. When WLAN signals are received they are communicated from the shared LNA to a subsequent amplification stage integrated within the WLAN radio. When Bluetooth signals are received they are communicated from the shared LNA to a subsequent amplification stage that comprises a transconductance amplifier integrated within the WLAN radio and an LNA load integrated within the Bluetooth radio. Gains in the LNAs, the transconductance amplifier, and/or the subsequent WLAN amplification stage may be dynamically adjusted. Outputs from the subsequent amplification stages may be communicated to mixers for further processing.

摘要翻译： 公开了在单芯片蓝牙和无线局域网（WLAN）系统中共享低噪声放大器（LNA）电路的方法和系统的方面。 该系统的方面可以包括具有集成的WLAN和蓝牙无线电的芯片。 可以经由耦合到集成在芯片中的共享LNA的单个天线来接收RF信号。 当接收到WLAN信号时，它们从共享LNA传送到集成在WLAN无线电中的后续放大级。 当接收到蓝牙信号时，它们从共享的LNA传送到后续的放大级，其包括集成在WLAN无线电内的跨导放大器和集成在蓝牙无线电内的LNA负载。 可以动态地调整LNA，跨导放大器和/或随后的WLAN放大级中的增益。 来自后续放大级的输出可以传送到混合器用于进一步处理。

公开(公告)号：US08081929B2

公开(公告)日：2011-12-20

申请号：US12133637

申请日：2008-06-05

申请人： Brima Ibrahim ,  Alireza Zolfaghari ,  Steven Hall ,  Kambiz Shoarinejad ,  Bojko Marholev

发明人： Brima Ibrahim ,  Alireza Zolfaghari ,  Steven Hall ,  Kambiz Shoarinejad ,  Bojko Marholev

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B17/00 ,  H04B1/10

CPC分类号： H04B1/1036 ,  H04B1/30

摘要： Methods and systems for optimal frequency planning for an integrated communication system with multiple receivers may include adjusting a center frequency of a low IF signal to reduce interference by a second order interference signal. The center frequency may be adjusted to avoid high power portions of the second order interference signal. The interference level corresponding to a center frequency may be determined by, for example, a SNR of the low IF signal, or by determining a BER for the low IF signal. The center frequency of the low IF signal may be dynamically adjusted to keep second order interference level at an acceptable level. Adjusting the center frequency of the low IF signal may also comprise keeping the low IF signal from being blocked by a DC component of the second order interference signal.

摘要翻译： 用于具有多个接收机的集成通信系统的最佳频率规划的方法和系统可以包括调整低IF信号的中心频率以减少二阶干扰信号的干扰。 可以调整中心频率以避免二阶干扰信号的高功率部分。 对应于中心频率的干扰电平可以通过例如低IF信号的SNR或通过确定低IF信号的BER来确定。 可以动态地调整低IF信号的中心频率以将二阶干扰电平保持在可接受的水平。 调整低IF信号的中心频率还可以包括保持低IF信号被二阶干扰信号的DC分量阻挡。

公开(公告)号：US08010073B2

公开(公告)日：2011-08-30

申请号：US10761625

申请日：2004-01-22

申请人： Meng-An Pan ,  Bojko Marholev

发明人： Meng-An Pan ,  Bojko Marholev

IPC分类号： H04B1/18

CPC分类号： H03G3/3042 ,  H03G1/0088 ,  H03G7/001

摘要： A power amplifier for use in a transmitter enables linear in dB output power control capability with 2 dB step sizes.

摘要翻译： 用于发射机的功率放大器可实现具有2 dB步长的线性dB输出功率控制能力。

公开(公告)号：US20090224741A1

公开(公告)日：2009-09-10

申请号：US12044726

申请日：2008-03-07

申请人： Bojko Marholev ,  Evan McCarthy

发明人： Bojko Marholev ,  Evan McCarthy

IPC分类号： G05F1/44 ,  G05F1/10

CPC分类号： G05F1/56

摘要： A circuit may include a load that is configured to enter a low power mode, a capacitor that is operably coupled to the load and that is configured to provide a minimum voltage and current for the load to maintain its state while in the low power mode, a finite state machine that is configured to receive a clock signal and to duty cycle on a periodic basis based on the clock signal and to enable a power-up signal on the periodic basis, and a low-dropout voltage regulator that is operably coupled to the finite state machine and to the capacitor and that is configured to receive the power-up signal from the finite state machine, to power on in response to receiving the power-up signal, to provide a voltage upon power on to the capacitor, and to regulate the voltage to charge the capacitor.

摘要翻译： 电路可以包括配置为进入低功率模式的负载，可操作地耦合到负载的电容器，并且被配置为在负载低功率模式下为负载提供最小电压和电流以维持其状态， 有限状态机，其被配置为基于时钟信号周期性地接收时钟信号和占空比，并且能够周期性地启用上电信号;以及低压差稳压器，其可操作地耦合到 有限状态机和电容器，并且被配置为从有限状态机接收上电信号，响应于接收到上电信号而接通电源，以在电容器上电时提供电压，以及 调节电压对电容充电。

公开(公告)号：US20080020717A1

公开(公告)日：2008-01-24

申请号：US11902630

申请日：2007-09-24

申请人： Bojko Marholev ,  Jesus Castaneda

发明人： Bojko Marholev ,  Jesus Castaneda

IPC分类号： H04B1/44

CPC分类号： H04B5/02 ,  H04B5/0093

摘要： A chip comprises and operational section and an input/output section. The operational section includes a controller. The input/output (I/O) section is coupled to the operational section. The I/O section comprises a transformer and a switching device. The transformer includes a primary side connected to first and second I/O ports and a secondary side connected to the operational section. The switching device is coupled to the controller and between the first and second I/O ports and a bias port, such that, under control of the controller, the switching device connects one of the first and second I/O ports to the bias port.

摘要翻译： 芯片包括操作部分和输入/输出部分。 操作部分包括控制器。 输入/输出（I / O）部分耦合到操作部分。 I / O部分包括变压器和开关装置。 变压器包括连接到第一和第二I / O端口的初级侧和连接到操作部分的次级侧。 开关装置耦合到控制器并且在第一和第二I / O端口与偏置端口之间，使得在控制器的控制下，开关装置将第一和第二I / O端口中的一个连接到偏置端口 。

公开(公告)号：US20060270377A1

公开(公告)日：2006-11-30

申请号：US11136850

申请日：2005-05-25

申请人： Iqbal Bhatti ,  Jesus Castaneda ,  Bojko Marholev

发明人： Iqbal Bhatti ,  Jesus Castaneda ,  Bojko Marholev

IPC分类号： H04B1/28

CPC分类号： H04B1/006 ,  H04B1/406

摘要： An apparatus and method for allowing two different signal paths to be coupled to a multi-tap transformer balun. The multi-tap transformer has a first port, which is coupled to a single antenna, and two or more differential secondary ports. Each port has one or more taps, which are optimized separately for each of the signal paths, allowing each of the two or more signal paths to operate in different frequency bands. Use of the method of the invention can decrease the number of external components and integrated circuit package pins, and reduce the area required for each signal path on an integrated circuit die, a printed circuit board, or the like.